Combination-lock.



No. 649,087. Patented May 8, |900. 0. G. WADE &. W. S. MONROE.

(Appumion mea sepa. 19, 189s.)

(No Model.) 3 Sheets-Sheet l.

mi ndnms Prrzns oo.. wouumo.. wAsnmaTbN. n. c.

No. 649,087; Patented may s, i900; C. G. WADE &. W. S. MONROE.COMBINATION LUCK. (Appupation mea sept. 10,. isos.) (nu Model.) 3sheets-sneer 2" M/.w y/N me bums wmns co., Pnommnn, wAsmNa'mN. n. cA

No. 049,087. Patented may 8,1000. c. 0. wAm-z 0 w s. Momma.

CUMBINATION LOCK.

(Appunntinn med sept. 19, 1891s.) (N0 Model.) 3 Sheets-Sheet 3.

NITED STATES EEICE.

PATENT CHARLES C. WADE, on CI-IICACO, ILLINOIS, AND WILLIS s. MONROE, OEMINNEAPOLIS, MINNESOTA, ASSICNORS To HENRY M. RILLINCS,

OF MINNEAPOLIS, dMINNESOTA.

COMBINATlON-LOCK.

SPECIFICATION forming part of Letters Patent Noe-19,087, dated May 8,1900.

Application led September 19, 1898. Serial No. 691,292. (N0 model.)

To all whom it may concern:

Be it known that we, CHARLES G. WADE, residing at Chicago, in the countyof Cook, State of Illinois, and WILLIS S. MONROE, residing atMinneapolis, inthe county of Hennepin, State of Minnesota, citizens ofthe United States, have invented certain new and useful Improvements inCombination-Locks; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers Skilled in the art to which it appertains to make and use thesaine.

Our invention relates to combination or keyless locks of the typedisclosed in the United States Letters Patent to Edward O. Penfield, ofdate February 9, 1892, bearing Serial No. 468,429, and has for itsobject to improve the construction of such locks in the severalparticulars hereinafter noted.

The invention consists of the novel devices and combinations of deviceshereinafter described, and defined in the claims.

The preferred form Of the invention is illustrated in the accompanyingdrawings, Wherein like characters indicate like parts throughout theseveral views.

Figure 1 is a side elevation of the lock with one side of the caseremoved. Fig. 2 is a similar view to Fig. 1, but illustrating reversedpositions of certain of the parts and certain of the parts being brokenaway. Fig. 3 is a transverse vertical section taken approximately on theline w3 c3 of Fig. 1, some parts being broken away. Fig. 4 is atransverse vertical section taken through the lock and knobs thereof onthe line w3 003 of Fig. 2. Fig. 5 is an outside elevation or end view ofthe innermost-section of the outer knob. Fig. 6 is an.

1 indicates a portion of a door which is provided with a suitableInortise formed in itsk the ordinary manner, the same being provided 6owith a lug 5, which cooperates with notches 61 of a detent-plate 7, oneend of which is pi-voted on a fixed stud 3. 9 indicates the keyholes,through which a key may be passed to operate the detent andlocking-bolt, above 6-5 described, in the ordinary manner. In the upperportion of the lock-case the lockingbolt or latch, which is operatedthrough the instrumentalities of our improvements, is

mounted to move horizontally. As shown, 7o

this locking-bolt or latch has a cam-acting or self-closing head 10,which works througha correspondingly-shaped passage in the outer edge ofthe lock-case. A stem portion 11 projects centrally into the look-caseand Works through an open keeper or guide-lug 12, between Which and thehead 10 a coiled spring 13 is compressed on said stem 11.

After the manner of a so-called nightlatch the bolt or latch 10 11 maybe moved 8o inward or released from the inner side of the p door bymeans of a rocking arm 14, pivoted to the lock-case at 15, Working withits free end through a seat 16 in the boltrstern 11 and subject to theaction of an ordinary ingerpiece 17. (Indicated in section in Figs. 1and 2 and by dotted lines in Fig. 3.)

Projecting in a plane midway between the sides of the lock-case andpivoted to the inner end of the bolt-'stem 11 is a link 18, pro- 9ovided with an elongated slot 19.

20 indicates a rocker, and 21 a tumbler, which parts are respectivelyprovided with short, but large, trunnions 22 23. The trunnions 22 and 23are of the same diameter and 95 are adapted to work interchangeably inseats or bearings formed in the sides of the lockcase. Thisinterchangeable feature is Very important and will be given furtherconsideration later on.

The free end or arm eXtcn- Ico angular, as shown at 32, and said blockis y the circuit through the conductor 37 will beV sion of the tumbler21 is provided with a headed stud or screw 24, which works in the slot19 of the link 18. A fixed stop 25 on the lock-case limits the pivotalmovement of the rocker 2O toward the right,- and a light spring 26normally holds said rocker in contact with said stop.

` The tumbler 21 has a pair of projecting lugs or fingers 27, one ofwhich is acted upon by a leaf-spring 28, which holds the other lugagainst a iXed stop 29. Both the spring 28 and the stop 29 are of suchdimensions transversely of the lock-case that they will engage the lugs27 in either position of the parts 20, 2l, 18, and 10, which twopositions are shown in Figs. 1 and 2.

Below the spring 28 a contact-block 30 is .p pivoted between the sidesof the case, the same having trunnions 31, that engage seats therein.The hub of the block 30 is made adapted to be moved from the positionindi- `catedby full lines in Fig. 1 into the posi- .tion. indicated bydotted lines in said figure L projects through said section 3 and isscrewed into a hub 35 on' saidsection 2.

. 36 indicates a peculiarly-formed leaf-sprin g, the intermediateportion of which nearly su rrounds the hub 35 and the free ends of which`engage and press one against the top edge of the deteut-plate 7 and theother against one `orthe other of the flat surfaces 32 on the hub `ofthe, pivoted contact-block 30. This spring 36thus serves to hold thedetent-plate 7 down- Ward, and the rocker 30 either in its operativeIposition, indicated by full lines, or in its inoperative position,indicated by dotted lines .in Fig. 1.

37 indicates the terminals of an electric wire-circuit, in which analarm device or gong -and `a battery or other electric energizer (notshown) are connected. One terminal of this ..wire-circuit is secureddirectly to the lockcase by means of a binding-screw 38 or otherwise,andthe other end or terminal is directly secured to a screw or metalliccontact-piece 39,which is secured and embedded in an insulation 40,carried by the free end of' the contact or switch block 30. As isevident,

closed `whenever the contact piece 39 is brought into contact with theleaf-spring 28 or the hubs `of the parts 20 and 21.

41` and 42 indicate, respectively, the outside `and the insideescutcheon-plates, which `may be of any approved construction. Theoutside or operating knobV is made up of a stem or body section 43 anda'cap or crown `section 44, and likewise the inner knob is y, i made upof corresponding, although not very .similaigsections 45 and 46,respectively. The

section 43 `of the outside knob` is reduced at its inner end and ismounted with freedom for rotation in suitable seats formed in the outerescutcheon-plate 41 and in the outer face of the door 1. The extremeinner end of this knob-section 43 is bifurcatc'd or provided with a pairof prongs 47, which enter into and interlock with notches or seats 48 inthe huh of the rocker 20. Hence it should beremembered that whenever theouter knob is moved the rocker 2O will also be moved, and if said knobis moved far enough the bolt or latch l0 11 will be retracted orreleased. The outer end of the knob-section 43 is provided with a seriesof circumfereutially and longitudinally extended cylindrical key-seats49, that are slotted, as at 50, on their inner portions. annular flange5l is shown as connecting the seats 49, and this iiange 51 is providedwith a notch 52, with which a flange or lug 53 on the knob-section .44is adapted `to engage to prevent said sections 43 and 44 from turningwith respect to each other. Working within each seat 49 is aplunger-like finger-key 54, provided with a laterally-projecting detent55, which projects through and works in the cooperating slot 50.

56 indicates a spindle or center-bolt which is passed through theknob-sections 43 and 45, through the escutcheon-plates, the door, andparts 2O and 2l of the lock. This stem or bolt 56 is secured at one endto the .knobsection 44, and, as sh own, it is screw-threaded at itsother end and provided with .a thumbnut 57, which serves to clamp awasher 58 against the knob-section 45, and thus hold-all of the parts ofthe knob together and in position. The knob-sections 45 and 46 are shownas secured together by a screw 59, and the stem end of the knob-section45 is shown as provided with a square or annularshank 60, which engagesa correspondin gl y-shaped seat in the inner escutcheon-plate 42, andthus prevents the inner knob from being` turned.

The releasing-disk G1 has a sleeve or stem 62, which is loosely mountedon the spindle or rod 5G and is bifurcated or formed with prongs 63 atits extreme inner end, which engage and interlock with a rectangularseat or slot 63' in the tumbler 2l. Hence it should be remembered thatthe tumbler 21 will be operated whenever, but only when, thereleasing-disk G1 is moved. The releasing-disk 61 is provided withperipheral notches 64, which stand in line or registration one `witheach of the slots 50 and detents -55 of the iinger-keys 54. On its innerface the disk 61 has a lug or projection 65, which works in-a segmentalslot 6G in the outer face of the knobsection 43. This segmental slot 66is ofisuch length that it will permit su iiicient movement of the diskGl and parts moved thereby to release the latch or lock-bolt l0 1l; butit is not suth'cient in extent to permit any given detent to be broughtinto line with `more than one of the several notches 64. Thiscooperation of the lug with the groove `66 IOO IIO

prevents the pronged ends 47 and 63, respectively, from being engagedwith their coperating seats 48 and 63' in improper positions.

The iinger-keys 54 are yieldingly pressed outward, as shown in Fig. 4,by means of a spider-spring consisting of au annular head G7 and aplurality of radial spring-arms 68. The collar 67 is placed on the stemor rods 56 and presses against the inwardly-projecting hub of theknob-section 44, and the springarms 68 work in the slots 50 of thekey-seats 49 and engage one with each ot the fingerkeys 54. The actionof these spring-arms 68 is entirely independent one of the other, yetthey have a common base of resist-ance and are removed and placed inworking position all at the same time. This spider-spring is bestillustrated in Fig. 8, by reference to which it will be seen that theeight spring` arms therein employed are formed by four approximatelyU-shaped spring-wire sections passed through the flange of the collar 57and rigidly secured thereto. If desired, these U- shaped springs may becast into the common supporting-collar.

The details of construction of our improved lock have now beendescribed.

The general operation of the mechanism may be briefly summarized asfollows: The finger-piece 54 may be reversed end for end, so as to setmore or less of them in either one of the two positions illustrated inFig. 4, by reference to which it will be noted that theuppermostnger-key is positioned with its detent 55 in engagement withone of the notches ofthe operating-disk 6l,while thelower linger-key isso positioned that it will clear and permit the movement of theoperating-disk. Hence it is obvious that the former of these finger-keyswhen pressed will release said disk 61, while the latter when pressedwill carry its detent 55 into engagement with one of the notches of saiddisk. The person knowing the combination may readily select and pressall of those keys and only such keys as normally stand in position toprevent the movement of the outer or operating knob without carryingtherewith the operating-disk 61 and parts operated thereby. Itisofcourse obvious that this combination may be varied at will simply byreversing end for end any of the iinger-keys 54. When the propercombination of finger-keys 54 have been pressed, the operating or outerknob being released from the alarm-sounding disk G1 may be moved so asto cause the rocker or arm 2O to retract or draw the primarylocking-bolt or latch lO 11 into its unlocking position. In this casethe doors may be opened without sounding the alarm. tiony of iiuger-keysis not struck any attempt to move the operating-knob willcorrespondingly move the disk 61, sleeve 62, and rocker 20, and thetumbler 21 will engage and press the spring 28 into contact with thecontactscrew 39, thus closing the circuit through the conductor 37 andsounding the alarm. How- Ilowever, when the proper combina- "ever, thisslight movement of the operatingknob necessary to sound the alarm doesnot retract or release the primary locking-bolt or latch, but simplymoves the screw 34 to the limit of its inward movement in the slot 19 ofthe link 18.

In view of the above-noted actions it will be seen that theoperating-knob may be used as a door-bell, for the gong or alarm devicemay be sounded at any time by a slight movement of said knob when theproper combination of finger-keys is not struck. By means of theiinger-piece 33 on the inner side of the door the contactscrew 39 may bebrought into contact with the hubs of the rocker 2O and tumbler 21 byrocking the switch-block 30 toward the right. Hence this device may beused by the occupants of the house as a private call or signalingdevice. When the switch-block 30 is thrown into the position indicatedby dotted lines in Fig. 1, the alarm device will not be sounded `whenthe door is opened.

In locks of this character a self-latching primary lock-bolt is usuallyemployed. The

projecting end of this primary latch or lockbolt is of course beveled inone direction only, and hence a lock having this cam-latch and connectedparts set for a door which opens toward the right could not be appliedto a door which would open toward the left. In view of these facts ithas been the previous practice to construct certain ot the partscontained within the lock-case in rights and lefts, which parts must besubstituted one for the other according to the requirements of aparticular case. This is an objection which will be found in theconstruction disclosed'in the patent to Pentield, previously noted.

Our invention removes the above defects and provides parts which may bereversed, so as to adapt the lock to a door which swings either towardthe right or toward the left, this being accomplished in both cases bythe same parts. For example, for a door which may be assumed to open bymovement toward the observer and toward the left the parts are setasshown in Figs. 1 and 4. In this position it will be noted the rocker 20is located adjacent or next to the back of the casesection 2, while thetumbler 2l is located next to the removable case-section 3.

To reverse the parts, so as to adapt the lock for a door which openstoward the right, the parts are rearranged as shown in Figs. 2 and Thismay be readily accomplished when the case-section `3 is removed by iirstremoving the parts 20 and 2l from their seats, so as to allow the spring13 to torce the head 10 outward of its seat. the stem laterally out ofthe keeper 12 all of the parts shown in Fig. 10 may be given a half-turnon the aXis of said stem 11. After this has been done the parts arerearranged as shown in Figs. 2 and 3, by reference to which it will benoted that the parts 2O and Then after having lifted- IOO IIO

fthe `same and the locking-bolt or latch ar- `ranged to be reversed sidefor side with respectto thelock-case, an electric contact,

and a reversible tumbler having oppositelyprojecting arms.

'2. Inra lock of the characterdescribed, the combination with thelock-case, of thelockboltoor latch 10, 1l spring-held outward to itslimit,the reversible rocker 20 and tumbler 2l, 27, provided,respectively, with trunnions 22, 23, the spring 28 acting on one of thelugs 27 of said tumbler, a contact-piece adapted to be engaged by saidspring 28, un-

der the initial movement of said tumbler 21,

an alarm-sounding electric circuit arranged to beclosed by saidengagement, andngeroperated combination devices operating on said `parts2O and 2l, substantially as described. l

3. In a lock of the character described, the combination with thelock-case, of the ordinary key-operated lock-bolt l` and pivoteddetent-plate 7 cooperating therewith to lock the same where set, of thepivoted switch-block 30 having the flattened surfaces 32,and theleafspring 36 incompletely coiled at its intermediate portion, tosurround the retaining-h ub 35, and engageable at one end with saiddetent-plate 7, and at its other end with said flattened surfaces 32,substantially as described.

`4E. In a lock of the character described, the combination with thelock-case, of the spring pressed bolt or latch 10, 11, the rocker 20andv tumbler 21, an alarm device arranged to be sounded by the initialmovement-s of said rocker and tumbler, and a connection between saidrocker and said lock-bolt or latch,

constructed to permit an initial movement of said rocker, necessary tosound said alarm device, without causing a movementofsaid bolt or latch,substantially as described.

5. In a lock of the character described, the combination with anactuating-knob provided with a plurality o f linger-operated keys,- ofan alarm-sounding disk or head engaged and released by said keys, in themanner indicated, and a slot-and-pin or Stadland-groove connectionbetween said knob and said disk or head, arranged to permit limited.rotation of the said parts, with respect to each other, substantially asand for the purposes set forth.

6. Ina lock of the character described, the combination with thebolt-releasing rocker 20, provided with the seats or notches48, of thealarm-sounding tumbler 2l provided with the perforation 63', the knobprovided with the stem projections or prongs 47 iitting said seats ornotches 48, the alarm-soundingjdisk or head 6l, the stem `or sleeveportion `62 of which has the prongs or stem projections 63 fitting saidseat or perforation 63', and fingeroperated combination-keys carried bysaid knob and operating on said disk or head 61, substantially asdescribed.

7. In a` lock of the character described, an operating-knob, involvingtwo knob-sections,

`a plurality of nger-operatedkeys mounted in one of said knob-sectionsand engageable and disengageable with the other knob-section, and thespider-spring, operating independently on the said keys and comprisingthe central hub or bodysection, 67, and the plurality of U-shaped radialspring-fingers, 68, cast into the said hub 67, the said parts operatingsubstantially `as described.

In testimony whereof we aiiix our signatures in presence of witnesses.

CHARLES G. WADE. WILLIS S. MONROE. Witnesses to Charles G. 'WadezCHARLES O. SHnRvEY, RUSSELL WILEs. lVitnesses to Willis S. Monroe:

F. D. MERCHANT, LILLIAN C. ELMoRE.

